) and opens (cuts off load) when the voltage falls to the lower limit ( 3. Setting Parameters To configure the module, use the following button sequence: Enter Setting Mode: Long press the Switch Parameters: Short press to cycle through parameters: (upper limit), (lower limit), and (time control). Adjust Values: buttons to increase or decrease values. Save and Exit: Long press for 5 seconds to save and return to the main interface. Switch Modes: Long press the button for 5 seconds to toggle between Charging ( ) and Discharging ( 4. Advanced Functions